Smoke-arrester



Nrrn STATES JAMES VVILLS, OF CHICAGO, ILLINOIS.

SMOKE-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 538,718, dated May 7, 1895.

Application filed October 22, 1894. Serial No. 526,540. (No model.)

To all whom it may concern:

Be it known that I, JAMES WILLs, a citizen of the United States,residing in Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Smoke-Arresters, of which thefollowing is a specification.

My invention relates to smoke arresters, or devices for arresting,removing and recovering carbon from smoke.

. The object of my invention is to provide a device or apparatus of asimple, efficient and durable construction for arresting and recoveringthe carbon or solid particles in smoke, and which may be easily andconveniently applied to any ordinary steam boiler, chimf ney or iiue.

In practicing my invention I secure in the chimney or Iiue, near thebase thereof, a double cone-shaped or pyramid-shaped screen,`ac cordin gas the Iiue is square or round, made of wire netting and correspondingin size at its largest diameter or cross section to the flue, andterminating at its lower pointed end in a cup or vessel through thebottom of which is inserted a water jet pipe and also a steam'jet pipe.The upper tapering end of the cone screen is open, and above the openupper end of the tapering screen I place a disk against which the jet ofwater may impinge. Below this double cone or tapering screen VI arrangea revolving fan or turbine operated by the draft within the flue orchimney, and which serves to throw the Water dripping from the screen orfrom the cup at the lower end of the screen, centrifugally. outwardagainst the walls of the iiue or chimney wherev it is collected by agutter surrounding the inner wall of the flue or chimney, and whichgutter communicates with a discharge pipe. A steam jet pipe in the cupat the lower end of the double tapering screen has a perforation belowthe surface of the water in the cup, so that the water in the cup may befed into the steam jet pipe and be sprayed or thrown upward With or bythe steam. A reversely revolving fan or turbine is placed above thescreen and preferably near the top of the chimney. This turbine or fanis also revolved by the draft or current in the chimney, but in theopposite direction to the fan or turbine located below the screen.

My invention consists in the novel devices and novel combination ofparts and devices herein shown and described and specified in theclaims.

- In the accompanying drawings, Figure 1 is an elevation of a deviceembodying my invention, the same being for convenience shown inconnection with a sheet-metal stack or flue.

Fig. 2 is a cross-section on line 2 2 ot' Fig. 1, and Fig. 3 is avertical sectional view of the cup or water-vessel at the bottom of thedoub1etaperedd screen.

In the drawings A represents the flue or chimney, and A is asupplemental flue lining, preferably of sheet-metal, which I ordinarilyplace inside the flue to form a frame or support for the different partsor devices embodying'my invention and also for the purpose of keepingthe Water or moisture away from the outer i'lue A.

B B aretwo tapering or cone-shaped wire screens, placed base to baseinside the flue A or its lining A', and through which the smoke mustpassin order to escape from the flue or chimney. The two tapering screens Band B together constitute a double cone shaped screen.

C is the cup or vessel in which the lower tapering end of the screen Bterminates.

,nozzle c2 at the top. The steam jet pipe C has an opening c below theupper edge .of the vessel C so 'that the water collected in the vessel Cmay feed into the steam jet pipe C2 and be sprayed or projected upwardby the force of the steam. At the upper end of the upper cone B there isan opening b, and above this is placed asmall flat disk b', againstwhich the water from the jet pipes may be projected and thereby directeddownward in a spray or film over the double cone-shaped screen.

D is a fan or turbine mounted on a spindle or shaft d in the flue belowthe double screen B B', and which serves to catch and throw out radiallyagainst the Wall of the flue lining A by its centrifugal action anyWater overfiowing from the cup C.

lF is an annular ygutter or trough arranged below the fan Dcommunicating with the discharge pipe F. The spindle or shaft d of thefan D is mounted in adjustable or screw threaded bearings d d supportedon the brackets d2 d2, secured to the flue A or its lining A.

H is a fan, similar to the fan D, mounted IOC in the fiue above thescreen and preferably near the top of the flue. The bearings h for itsshaft h are, preferably, also adjustable.

The water jet pipe C is connected by a pipe C3 with a supply of waterunder pressure sufficent to throw the jet of water against the disk b;and the steam jet pipe C2 is connected with a steam supply pipe C4through which steam under pressure is supplied to the jet pipe.

The operation is as follows: By the water jet pipe C a jet of water isprojected against the disk b and it thence iiows downward in a film overthe surface of the tapering screen B B and is collected in the vessel C;or that portion of the same is so collected which is not converted intosteam or vapor. The jet of steam and water from the steam jet pipe C2 asit is projected upward expands in a vapor or spray and fills to agreater or less extent with vapor the interior of the double conescreen. As the smoke is forced through the screen filled with vapor andcovered to a greater' or less extent with afine film of water, thecarbon and solid particles in the smoke are arrested and carried downwith water and collected in the vessel C, the tapering screen serving todirect the same into said vessel. As the vessel overliows these solidparticles ioatingon the top ofthe water drop down with the water untilthey strike the revolving fan D by which they are thrown radiallyoutward and collected in the gutter F, from which they escape throughthe discharge pipe. If desired the carbon so recovered may be collectedand pressed or dried and used as fuel. The upper fan serves to regulateorrepress the draft. The two oppositely disposed screens B B',constituting the double tapering screen, are, preferably, placed withtheir bases or larger diameters contiguous to each other, as shown inthe drawings; and they may also be preferably formed in one piece, orunited together, as indicated in the drawings, but if desired the twocones B B may be in two separate pieces and placed a greater or lessdistance apart instead of contiguous to each other, as shown.

claiml. The combination with a iiue,of a double tapering screen, a cupor vessel at the lower end of the screen, a water jet pipe and a steamjet pipe in said vessel, a disk at the upper end of the screen for thejet of water to project against, a revolving fan below the screen, and amarginal gutter in the fine below the fan, substantially as specified.

2. The combination with a fiue, of a double tapering screen, a cup orvessel at the lower end of the screen, a water jet pipe and a steam jetpipe in said vessel, a disk at the upper end of the screen for thejet-of water to project against, a revolving fan below the screen, amarginal gutter in the fine below the fan, a discharge pipe connectingwith said gutter, and a second fan above the screen, substantially asspecified.

3. The combination with a iue and its lining A', of a double taperingscreen, a cup or vessel at the lower end of the screen, a water jet pipeand a steam jet pipe in said vessel, a disk at the upper end of thescreen for the jet of water to project against, a revolving fan belowthe screen, and a marginal gutter in the fine below the fan,substantially as specified.

4. The combination with a flue of a tapering or cone-shaped screen inthe tine through which the smoke must pass, a steam pipe for supplying ajet of steam inside the iue and means for supplying a jet of waterinside the fine, substantially as specified.

5. The combination with a flue of a double tapering screen in the Huespanning the flue at the middle larger diameter of said screen andhaving one tapering end projecting downward and one tapering endprojecting upward in the fine, and a water jet pipe projecting a jet ofwater through the screen,substantially as specified.

6. The combination with a flue of a double tapering screen therein,spanning the flue at the middle larger diameter of said screen andhaving one tapering end projecting downward and one tapering endprojecting upward in the flue, and a steam jet pipe, substantially asspecified.

7. The combination with a flue of' a double tapering screen,spanning thefine at the middle larger diameter of said screen and having onetapering end projecting downward and one tapering end projecting upwardin the flue, a water collecting vessel below the screen and a water jetpipe, substantially as specilied.

8. The combination with a fine of a double tapering screen, spanning theflue at the middle larger diameter of said screen and having onetapering end projecting downward and one tapering end projecting upwardin the flue, a water collecting vessel at the lower end of the screen, asteam jet pipe in said vessel provided with a water feed opening,substantially as specified.

9. The combination with a flue of a double tapering screen, spanning thefine at the middle larger diameter of said screen and having onetapering end projecting downward and one tapering end projecting upwardin the flue, a water collecting vessel at the lower end of the screen, asteam jet pipe in said vessel provided with a water feed opening, and awater jet pipe in said vessel, substantially as specified.

l0. The combination with aflue of adouble tapering screen, a watercollecting vessel at the lower end of the screen, a steam jet pipe insaid vessel provided with water feed opening, a water jet pipe in saidvessel, a rotary fan below said screen, and a marginal gutter below thefan, substantially as specified.

JAMES WILLS. Witnesses:

CHARLES FARB, .FRANK J. KOCH.

IOO

TIO

IIC

